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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Depository for semen during insemination. where urine leaves the body






2. Birthing process (termination of gestation)






3. FEED






4. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






5. Why does estrus happen before ovulation?






6. 2 month growth cycle. stored in the epididymis of the bull






7. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat






8. Look for infection - split - and rupture of the penis






9. Check feet and legs - look for masculine traits in build such as crest and muscling






10. Animals which have many estrous periods per year (ex: cow - sow)






11. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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12. Urinary calculi.






13. What makes the milk flow through the mammary glands?






14. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






15. Animal which has been castrated after puberty






16. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






17. Important 'landmark' during palpation






18. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






19. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






20. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






21. Prevent the cow from getting an infection from the calve






22. (switzerland) 2nd in size and milk production - most muscle -






23. (FSH) causes egg to mature in females






24. 4-6 days






25. 19-23 (21) days






26. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






27. What about the sperm for a bull which has been castrated but still has testicles?






28. 1-2 days






29. Why does estrus happen before ovulation?






30. Can survive ~7 days in cow. vast majority <48 hours






31. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






32. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






33. Sperm production






34. Actual heat cycle (period)






35. 336 days






36. Milk is 15% ________ and 85% __________.






37. Birthing process (termination of gestation)






38. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






39. Not under a timeline - cow can not be sold as steak






40. S-shaped inside body - relaxes to be exposed for breeding. Disadvantges: muscles weaken with age - cannot always hold it in - exposed to harsh outside conditions or stepped on.

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41. 1-3 days






42. 16-20 hours






43. Depository for semen during insemination. where urine leaves the body






44. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






45. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






46. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






47. 283 days






48. ~60 days before calving






49. Duct through penis that carries sperm and urine






50. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).